BIRMINGHAM, UNITED KINGDOM - JANUARY 13: (EDITOR'S NOTE: A TILT AND SHIFT LENS WAS USED IN THE CREATION OF THIS IMAGE) Prabhdeep Cheema (R) and Arun Hothi, both aged 17, enjoy a snowball fight in Chamberlain Square after sitting exams on January 13, 2010 in Birmingham, England. Fresh snowfall has been affecting many parts of the UK as very cold conditions continue to dominate the country's weather. The MET Office has issued weather warnings for Wales, Southern England, north-west England and the West Midlands. Many road, rail and air passengers are again facing severe delays to their journeys. (Photo by Christopher Furlong/Getty Images)